No need for a Windows XP CD. You can use free tools to remove Fedora from within Windows.
- Download MBRFix from Sysint, extract the archive.
- Navigate to the archive through the command line and run the following command, substituting mbrfix with mbrfix64 if you are on a 64-bit system:
mbrfix /drive 0 fixmbr /yes
This command will replace the bootloader installed by Fedora, likely GRUB. Replace the drive number accordingly if necessary. If you only have one primary drive, the above command will work. Please refer to the MBRFix documentation if you are unsure of any options. The above command is what I previously used on my dual boot XP systems hundreds of times.
You can now remove the Linux partitions, I suggest a free partition manager such as EaseUS Home Edition. Windows disk management doesn't always cooperate well when removing Linux partitions, and EaseUS will easily allow you to remove the partition and extend it back to your main volume.